Wiggly squid with many tentacles.A muscular hydrostat is a biological structure used to move its host about, consisting of muscles with no skeletal support. It performs its hydraulic movement without fluid in a separate compartment, as in a hydrostatic skeleton.en.wikipedia.org/wiki/Muscular_hydrostatWritten by Justin Windle and Jamie Zawinski; 2016.XScreenSaver is a collection of hundreds of free screen savers for X11, MacOS and iOS. Download them all here:www.jwz.org/xscreensaver/This playlist contains videos of them all:ruclip.com/p/PLbe67PprBSpqM_-HU49fmIS8ncApw4i08